Bump dcos-docs
Bump dcos-docs

Bump dcos/dcos-docs
  Thomas Rampelberg:
     Adding images
     Banishing 404s
     Minor refactor of security

ahoskins/dcos-website,dcos/dcos-website,dcos/dcos-website,dcos/dcos-website,brndnmtthws/dcos-website,ahoskins/dcos-website,dcos/dcos-website,ahoskins/dcos-website,ahoskins/dcos-website,brndnmtthws/dcos-website,brndnmtthws/dcos-website,brndnmtthws/dcos-website